[1, 2] type: Separator, N: [
[1, 5] type: KeyWord, N: for
[1, 6] type: Separator, N: ]
[1, 8] type: Separator, N: {
[1, 10] type: Separator, N: }
[1, 14] type: KeyWord, N: int
[1, 16] type: NotResKeyWord, N: a
[1, 18] type: Operation, N: ++
[1, 20] type: Operation, N: -
[1, 23] type: Operation, N: <=
